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DetChar (General)
jishnu.suresh - 11:29 Friday 20 December 2019 (12248) Print this report
DQ Shift: 19th December 2019

Summary Page – https://gwdet.icrr.u-tokyo.ac.jp/~controls/summary/day/20191219/

Summary for the day

  • Better Observing duty cycle compared to the previous day.
    • 69,282 second in observing mode
    • Duty cycle for the day: 80.18%
  • Mean BNS inspiral range of about 7kpc
  • Low frequency noise in the strain spectrum, is in a better state compared to December 17.
  • Omicron glitch plot shows loud glitches near 3.30UTC 6.30UTC, and 11 UTC. These loud glitches lines up with prominent range instability.
  • There are clusters of relatively loud glitches in the region 20.00-21.30 UTC.
  • As per the klog entry, starting from 8.30UTC, even though the detector was in the observing mode, SR3 was misaligned.
    • Checking klog entry and the K1:VIS-SR3_TM_OPLEV_PIT_DIAG_DQ channel, it seems that it returned to the previous position by 11.30UTC.
  • Few lockloss can be related to the earthquake happened in different regions throughout the day. Ground motion sensors recorded the same. 
SEI/Ground/BLRMS_overview
o Lockloss near 6.30UTC lines up with the large earthquake was happened in Aomori (15.21 JST). (https://www.jma.go.jp/en/quake/20191219062529393-19152143.html) 
o All the ground motion sensor data aligns with the lockloss near 6.30UTC (for example: https://gwdet.icrr.utokyo.ac.jp/~controls/summary/day/20191219/gif/ixcseis/
o Lockloss at 12UTC aligns with variation in the ground motion (example: https://gwdet.icrr.u-tokyo.ac.jp/~controls/summary/day/20191219/gif/exvseis/). Collaborator shift reported the same. 
o Lockloss at 20.30UTC and corresponding drop in BNS range align with the earthquake happened in  Tanegashima region (https://www.jma.go.jp/en/quake/20191219203213493-20052845.html). Ground motion sensor data supports the same (https://gwdet.icrr.u-tokyo.ac.jp/~controls/summary/day/20191219/gif/ixvseis/
SEI/Ground/BLRMS_overview
o Lockloss near 6.30UTC lines up with the large earthquake was happened in Aomori (15.21 JST). (https://www.jma.go.jp/en/quake/20191219062529393-19152143.html) 
o All the ground motion sensor data aligns with the lockloss near 6.30UTC (for example: https://gwdet.icrr.utokyo.ac.jp/~controls/summary/day/20191219/gif/ixcseis/
o Lockloss at 12UTC aligns with variation in the ground motion (example: https://gwdet.icrr.u-tokyo.ac.jp/~controls/summary/day/20191219/gif/exvseis/). Collaborator shift reported the same. 
o Lockloss at 20.30UTC and corresponding drop in BNS range align with the earthquake happened in  Tanegashima region (https://www.jma.go.jp/en/quake/20191219203213493-20052845.html). Ground motion sensor data supports the same (https://gwdet.icrr.u-tokyo.ac.jp/~controls/summary/day/20191219/gif/ixvseis/
SEI/Ground/BLRMS_overview
o Lockloss near 6.30UTC lines up with the large earthquake was happened in Aomori (15.21 JST). (https://www.jma.go.jp/en/quake/20191219062529393-19152143.html) 
o All the ground motion sensor data aligns with the lockloss near 6.30UTC (for example: https://gwdet.icrr.utokyo.ac.jp/~controls/summary/day/20191219/gif/ixcseis/
o Lockloss at 12UTC aligns with variation in the ground motion (example: https://gwdet.icrr.u-tokyo.ac.jp/~controls/summary/day/20191219/gif/exvseis/). Collaborator shift reported the same. 
o Lockloss at 20.30UTC and corresponding drop in BNS range align with the earthquake happened in  Tanegashima region (https://www.jma.go.jp/en/quake/20191219203213493-20052845.html). Ground motion sensor data supports the same (https://gwdet.icrr.u-tokyo.ac.jp/~controls/summary/day/20191219/gif/ixvseis/

SEI/Ground/BLRMS_overview

K1 HierarchicalVeto (previous day) 1260662418-1260748818 (https://gwdet.icrr.u-tokyo.ac.jp/~controls/summary/day/20191218/detchar/hveto/)

  • Round 1 Winner: K1:CAL-PCAL_EX_1_PD_TX_V_DQ
  • Round 2 Winner: K1:ASC-DHARD_Y_OUT_DQ
  • Round 3 Winner: K1:ASC-DHARD_Y_OUT_DQ
  • Round 4 Winner: K1:ASC-DHARD_Y_OUT_DQ

Relevant klog entries: 

FScan plots are not avialble yet. Will add the report later. 

Summary for the day
• Better Observing duty cycle compared to the previous day.
o 69,282 second in observing mode
o Duty cycle for the day: 80.18%
• Mean BNS inspiral range of about 7kpc
• Low frequency noise in the strain spectrum, is in a better state compared to December 17.
• Omicron glitch plot shows loud glitches near 3.30UTC 6.30UTC, and 11 UTC. ZThese loud glitches lines up with prominent range instability.
• There are clusters of relatively loud glitches in the region 20.00-21.30 UTC.
• As per the klog entry, starting from 8.30UTC, even though the detector was in the observing mode, SR3 was misaligned. 
o Checking klog entry and the K1:VIS-SR3_TM_OPLEV_PIT_DIAG_DQ channel, it seems that it returned to the previous position by 11.30UTC.
• Few lockloss can be related to the earthquake happened in different regions throughout the day. Ground motion sensors recorded the same. 
 
Summary for the day
• Better Observing duty cycle compared to the previous day.
o 69,282 second in observing mode
o Duty cycle for the day: 80.18%
• Mean BNS inspiral range of about 7kpc
• Low frequency noise in the strain spectrum, is in a better state compared to December 17.
• Omicron glitch plot shows loud glitches near 3.30UTC 6.30UTC, and 11 UTC. ZThese loud glitches lines up with prominent range instability.
• There are clusters of relatively loud glitches in the region 20.00-21.30 UTC.
• As per the klog entry, starting from 8.30UTC, even though the detector was in the observing mode, SR3 was misaligned. 
o Checking klog entry and the K1:VIS-SR3_TM_OPLEV_PIT_DIAG_DQ channel, it seems that it returned to the previous position by 11.30UTC.
• Few lockloss can be related to the earthquake happened in different regions throughout the day. Ground motion sensors recorded the same. 
Summary for the day
• Better Observing duty cycle compared to the previous day.
o 69,282 second in observing mode
o Duty cycle for the day: 80.18%
• Mean BNS inspiral range of about 7kpc
• Low frequency noise in the strain spectrum, is in a better state compared to December 17.
• Omicron glitch plot shows loud glitches near 3.30UTC 6.30UTC, and 11 UTC. ZThese loud glitches lines up with prominent range instability.
• There are clusters of relatively loud glitches in the region 20.00-21.30 UTC.
• As per the klog entry, starting from 8.30UTC, even though the detector was in the observing mode, SR3 was misaligned. 
o Checking klog entry and the K1:VIS-SR3_TM_OPLEV_PIT_DIAG_DQ channel, it seems that it returned to the previous position by 11.30UTC.
• Few lockloss can be related to the earthquake happened in different regions throughout the day. Ground motion sensors recorded the same. 
 
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